diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
index 44b76b7ddd..8b4f0ed81a 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
@@ -749,13 +749,7 @@ namespace OpenSim.Region.Framework.Scenes
                     item.GroupID = m_part.GroupID;
 
                 if (item.AssetID == UUID.Zero)
-                    item.AssetID = it.AssetID;
-
-                lock (m_items)
-                {
-                    m_items[item.ItemID] = item;
-                    m_inventorySerial++;
-                }
+                    item.AssetID = m_items[item.ItemID].AssetID;
 
                 m_items[item.ItemID] = item;
                 m_inventorySerial++;